Twenty-one, XXI or 21 may refer to:
21 (number), the natural number following 20 and preceding 22 One of the years 21 BC, AD 21, 1921, 2021
Films The 21, directed by Tod Polson 21 (2008 film), starring Kevin Spacey, Laurence Fishburne, Jim Sturgess, and Kate Bosworth. Twenty-One (1991 film), starring Patsy Kensit Twenty-One (1923 film), starring Richard Barthelmess Twenty-One (1918 film), starring Bryant Washburn
Science Scandium, a transition metal in the periodic table 21 Lutetia, an asteroid in the asteroid belt
Music XXI (band), a band formerly known as A Feast for Kings Twenty One Pilots, American musical duo 21 Savage, an Atlanta-based rapper
Albums 21 (EP), a 2015 EP by Hunter Hayes 21 (Omarion album), 2006 21 (Adele album), 2011 21 (Rage album), 2012
Twenty One (Geri Allen album), 1994 Twenty One (Mystery Jets album), 2008 Twenty 1, a 1991 album by Chicago XXI, a 2015 box set by Rammstein
Songs "21" (The Paddingtons song), 2004 "21" (Hunter Hayes song), 2015 "21" (Polo G song), 2020 "21", a song by Ayra Starr on The Year I Turned 21 "21", a song by Corey Hart on Young Man Running "21", a song by Craig Davis from 22 (2022) "21", a song by DaBaby from Blank Blank "21", a song by Dean from 130 mood: TRBL "21", a song by Gracie Abrams on minor (EP) "21", a 2015 song by Cory Marks from This Man "21", a 2010 song by Flo Rida from Only One Flo (Part 1) "21", a 2018 song by Mitch James 21?!, a 2008 song and EP by Marya Roxx "Twenty One", a song by The Shirelles "Twenty One", a song by Khalid from Free Spirit "Twenty-One", a song by The Eagles from Desperado "Twenty One", a song by The Cranberries from No Need to Argue "Twenty One", a song by Corey Smith
Games and sports Twenty-One (card game), forerunner of Blackjack and Pontoon 21 (drinking game), a counting game 21, also "Counting to 21 game" or "21 game", a Nim-style counting game Twenty-one (basketball), a basketball variation Twenty-One (game show), an American game show from 1956 to 1958 and in 2000 Catch 21, an American game show based on Blackjack
Other uses 21 (novel) or The Final Unfinished Voyage of Jack Aubrey, by Patrick O'Brian, 2004 "21" (Boardwalk Empire), an episode of the Boardwalk Empire television series 21 Club, a former restaurant and nightclub in New York City Twentyone Lake, a lake in Minnesota Caterham 21, a roadster 21 Cineplex, an Indonesian movie theater chain 21 Emon, a Japanese manga series
See also 021 (disambiguation) 21st (disambiguation) Twenty to One, a 1935 British musical comedy List of highways numbered 21